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Question

Puneeth is building a slide for kids. If the ladder is 8 ft tall and he wants the bottom of the slide to be 15 ft from the ladder, how long does the slide need to be?


A

18 ft

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B

19 ft

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C

16 ft

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D

17 ft

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Solution

The correct option is D

17 ft


By using Pythagoras theorem,
(Length of the ladder)2 = 82+152=64+225=289
Length of the ladder =17 ft


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